Radiator



June 9, 1925.

s. R. SWENSON mmuon Filed July 14, 1920 xxxx N a 0 WM 0 0 m 5 2M (TMATTUlP/VEY Patented June 9, 1925.

UNITED STATESPATENT OFFICEJ SWEN It. SWENSON, OF NEW HAVEN, CONNECTICUT,ASSIGNOR, BY MESNE ASSIG-N MENTS, TO THE MOTOR RADIATOR & MANUFACTURINGCORPORATION, OF NEW- ARK, NEW JERSEY, A CORPORATION OF DELAWARE.

RADIATOR.

Application filed July 14, 1920. Serial No. 396,254.

To all whom it may concern:

Be it known that I, SWEN R. SwENsoN, a citizen of the United States, anda resident of New Haven, in the county ofNew Haven and State ofConnecticut, have invented certain new and useful Improvements inRadiators, of whichthe following is a specification.

This invention relates to radiators and is more especially directed toaradiator of the type adapted for use in combination with aninternal-combustion engine. r

The object of the invention is the provision of a core forradiators ofthis character 5 which is simple in construction, cheapv to manufacture,and of high heat-radiating capacity.

To accomplish the object of this invention and to improvegenerally upondevices of this character, the core is composed of a pluralityofparallel plates of thin sheet metal, each of which plates is stampedto provide successive series of preferably cup-like or frusto-conicalprojections extending in opposite directions from the plate, certain ofwhich projections serve to space apart the adjacent plates. The sideedgesof successive pairs of plates are joined together to form a waterpassage. The projections extending from each plate of a pair toward theremaining plate to space apart said plates preferably contact with thesurface of the coacting plate and are of'relatively slight depth. Theremaining projections of each plate are of somewhat greater depth.

and a portion thereof contact with and are soldered or otherwiseconnected to similar projections of the adjacent plate of the contiguouspair. Such of these latter projec tions as do not contact with similarprojections extend approximately half way across the air passages. Theprojections extending into the air passages form pockets connecting withthe water-passages and a1'e.ar ranged in a stag ered relation. By havingonly so many of the water pocket projections of each plate in contactwith like projections of the adjacent plate of the contiguous air as arenecessary to give to the pressure of the water, and having the remaining water pocket projections offset from each other or staggered;the air in traversing the air passages is reflected from one plate tothe other and is also deflected alternately upwardly and downwardly andis therefore swirled around in sucha manner that all of it comes incontact with-the metal of the plates. j,

In the accompanying drawings is disclosed a specific embodiment of myinven tion wherein 1 Fig. 1 is a front elevation of a embodying theinvention;

Fig. 2 is aside elevation of one face of a water tube; 1 1

radiator of a tube;

Fig. 4: is an enlarged fragmentary front elevationof a core; I

Fig. 5 is a section on line 5-5 of Fig. 2.

Interposed between the upper and lower water tanks 1 and 2,respectively, of a radiator is the core or cooling unit 3. This unit iscomposed of a succession of parallel plates 1 having offset side edges,the offset edges of each pair of plates being arranged to. contact witheach other to space apart the plates of the pair and which offset edgesare soldered or otherwise permanently. joined together, whereby areformed the water passages. .Vertical rows of relatively smallprojections 4; are stamped fromone or both plates of a pair in the samedirection that the edges are offset, and said projections are soarranged that they extend fromonevplate of the aforementioned pairs tothe other and cooperate with the offset edges to space apart the platesof a pair to form water passages. These projections may extendalternately from each plate ofa pair or theyinay all extend flOHL asingle plate. Arranged vertically of the plates and near the edgesthereof are rows of relatively large stamped projections 5 which areextended from the plate in a direction opposite to that of theprojections 4.-. Each of the projections5 of a plate contact withaisimilar projection of. the adjacent plate of the contiguous pair andsaid contacting projections are joined to- Fig. 3 is a side elevation ofthe other face i plates are assembled to form a radiator core,-j

each projection 6 is offset from each projection 6 of the other plate-ofthe pair.

For convenience of manufacture the plates may advantageouslybegroupednintosections before the core is assembled, eachsection beingcoinposed'ofza pair ofplate's; For instance, a sheet of metal. ofa-width equal to twice the depth of the finished coremay' have its side:edges anda narrow strip alongits center lrne offset 111 the samedirectionand stamped to provide -on either side of its central strip theproper projections, after which the sheet is folded along the centerline to bring into-' oontactfthe''side edges thereof, which are thenjoined together, or, two properly-stamped strips with offset edges maybe positioned niththesoi'lset edges in contact and the sideedgesjoinedtogether. Instead of proceeding in this manner,"a strip a trifle longerthan the height of the core properly stamped and with its dges olis'etnia-y be-fold'ed "about a trans- "verseline, the side edgesjoinedtogether,

and the closed endofthesection openedto Pl'OVlClG- a passage throughthe-section. The grouping oi the plates according toany of these methodsforms awater passage section.

Other methods of assembly, such the groupingof the plates to formair-passage sections, will suggest themselves to one skilled in the art-0f makingradiators. faces of the projections are tinned after theplateshave been formed into sections,

after which such sections are grouped together with-the projections o ofeach plate in contact with the adjacent plate of "the contiguous water,passage 'sectioinzand the "tinned projections sweat-ed together.-

It is, of course, Understood that the particular device shown anddescribed in the present application illustrates merely a preferred formof construction and an arrangementof pa rts',-'which., it has beenfound,-w.ill successfully carry out the principles of my inventioin andthat various changes and modifications of details may easily be madewithout departin from Ktlre' spirit of my invention as defined 1n theape pended claims;

: -What Lclaimis 1. A radiator core"coInprising plurality o-f'pla'te'sarranged in pairs 'with "'tlie'side edges of each" pair of plates joinedtogether, I

The

'projections integral with and extending from the faces of each plateserving to space apart adjacent plates and other projections extendingfrom each plate toward the adj acent plate of th'e-i'contiguons' pairo'l'a'plates, said projections on each plate beingofi'set from anyprojection on the said adjacent plate-of the contiguous pair 2. Aradiator core comprising aplurality of plates arranged pairs "with the:side edges of each pair of plates joined together, a" row of projectionsintermediatethe edges of one plate of a pair serving to space apart theplates Gretta-1r, a row of projections adjacent each edge of a plateextended in the opposite direction from a said 1 intermediate row, saidproj ect'io'ns serving to space apart the adjacent plates of contiguousp-ai=rs,;and"

other projectionson each plate extending from said plate toward the adjacent plate; of the contiguous pair, last-i'r'iamed projections on ea'ehplate alteiaiating with pro jections on the other. A j v 3. A: radiato-r core comprising a plurality oi plates arranged'in palrs witlr'theside edges of each plate'oflise-t'and'joined to-the side edges of theotheriplate' of-thejaairgrows of projections integral with and extendedfromsaid plates in"opposit'e'directiorrs' and serving to space apartadjacent plates, and additional pro ections' extending from 'ad a centplates of contiguous pairs into thesp'ace between said plates; eachofsaid 'projections on one plate being ofts'et-from the-projections on theother plate.

of plates arranged in pairs with the side edges ot each pail-0t platesjoined together, a row-of projections -'integral with'iand ex 1 tendingfrom one face o'teaclr-plate andicon tacting with the other platetospace apart theplates of each pair and other, projections integral witheachplato extending from. said plate to'ward'the adjacentplaite of thecon'- tiguouspair, certain-oil said *pr'oj ectionson each pl atebeingoiis'ct from each projection on the other plate-a 51A radiatorcorecomposed of a'plnral ity of sections, each section con-ip rising apair ofpl'ates with the sideledges thereof joined together, a rowofjprojections extending from one'plate of the-pair and contact ingwith" the other plate to space apart said plates, projections integralwith-and extends mgfronr each of said: platestoward the ad acentpl'ateo'f a contiguous pair, certain of said last named projectionsbeing in register ;with projections on said adjacent plate and theremainder-of saidlast named project-ions beingoff-set from any projec-'tionof 'saidadjacent-plate. V

.Aradiator core composed of a plur'al ity of'sections, eaclrsectioncomprising "a pairof'fplates havingfoflset edges joinedtogether, arow ofproject-ionsintermediate l." A radiator core conr arising a *pluralitythe edges of one of said plates extending to projections on each plateextending toward the other to space apart said plates, a row theadjacent plate of the contiguous pair, of projections adjacent each edgeof a plate said last-named projections alternating With 10 extended inthe opposite direction from said the similar projections on saidadjacent intermediate row and in register with the plate. projections ofa. similar roW on the adjacent plate of the contiguous section, andother SWEN R. SWENSON.

